(File Matching with Multiple Transactions) It's possible (actually common) to have several transaction records with the same record key. This occurs because a particular customer might make several purchases and cash payments during a business period. Rewrite your accounts receivable file-matching program of Exercise to provide for the possibility of handling several transaction records with the same record key. Modify the test data of Exercise to include the following additional transaction records:
Account number | Dollar amount |
300 | 83.89 |
700 | 80.78 |
700 | 1.53 |
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